DTC 56
DTC C1056 (No. 56): Solenoid CircuitDTC Detecting Condition
The ABS control module monitors the voltage of the terminal of the solenoid circuit constantly with the ignition switch turned ON. It sets this DTC when the terminal voltage does not become low/high for the ON/OFF command to the solenoid or the voltage difference between solenoid circuit terminals exceeds the specified value with the solenoid turned OFF.
DTC Troubleshooting